. >> both president obama and governor romney have said they will prevent iran from getting a nuke even if they means military action. last week former defense secretary said a strike on iran's facilities would not work and quote, could prove catastrophic haunting us for generations. can the two of you be absolutely clear and specific to the american people how effective would a military strike be? congressman ryan? >> ryan: we cannot allow iran to gain a nuclear weapon's capability. let's take a look at where we have come from. when barack obama was elected they had enough nuclear material to make one bomb and now they have enough for five. they are four years close towards a nuclear weapon's capability. we had four different sanctions against iran one here. mitt romney proposed these ang shuns in 2007. the administration was blocking us every step of the way, only because we had strong bipartisan support for these tough sanctions were we able to overrule. imagine what would have hand if we had these sanctions in place earlier. look at what iran is doing. they are stepping up their ter